-#!/usr/bin/env python
+#!/usr/bin/env python3
import abc
-import six
-from scapy.layers.l2 import Ether, Raw
+from scapy.layers.l2 import Ether
+from scapy.packet import Raw
from scapy.layers.inet import IP, UDP
+from scapy.layers.inet6 import IPv6
+from scapy.contrib.mpls import MPLS
-from util import ip4_range
-
-@six.add_metaclass(abc.ABCMeta)
-class BridgeDomain(object):
- """ Bridge domain abstraction """
+class BridgeDomain(metaclass=abc.ABCMeta):
+ """Bridge domain abstraction"""
@property
def frame_request(self):
- """ Ethernet frame modeling a generic request """
- return (Ether(src='00:00:00:00:00:01', dst='00:00:00:00:00:02') /
- IP(src='1.2.3.4', dst='4.3.2.1') /
- UDP(sport=10000, dport=20000) /
- Raw('\xa5' * 100))
+ """Ethernet frame modeling a generic request"""
+ return (
+ Ether(src="00:00:00:00:00:01", dst="00:00:00:00:00:02")
+ / IP(src="1.2.3.4", dst="4.3.2.1")
+ / UDP(sport=10000, dport=20000)
+ / Raw("\xa5" * 100)
+ )
@property
def frame_reply(self):
- """ Ethernet frame modeling a generic reply """
- return (Ether(src='00:00:00:00:00:02', dst='00:00:00:00:00:01') /
- IP(src='4.3.2.1', dst='1.2.3.4') /
- UDP(sport=20000, dport=10000) /
- Raw('\xa5' * 100))
+ """Ethernet frame modeling a generic reply"""
+ return (
+ Ether(src="00:00:00:00:00:02", dst="00:00:00:00:00:01")
+ / IP(src="4.3.2.1", dst="1.2.3.4")
+ / UDP(sport=20000, dport=10000)
+ / Raw("\xa5" * 100)
+ )
@abc.abstractmethod
def ip_range(self, start, end):
- """ range of remote ip's """
+ """range of remote ip's"""
pass
@abc.abstractmethod
def encap_mcast(self, pkt, src_ip, src_mac, vni):
- """ Encapsulate mcast packet """
+ """Encapsulate mcast packet"""
pass
@abc.abstractmethod
def encapsulate(self, pkt, vni):
- """ Encapsulate packet """
+ """Encapsulate packet"""
pass
@abc.abstractmethod
def decapsulate(self, pkt):
- """ Decapsulate packet """
+ """Decapsulate packet"""
pass
@abc.abstractmethod
def check_encapsulation(self, pkt, vni, local_only=False):
- """ Verify the encapsulation """
+ """Verify the encapsulation"""
pass
def assert_eq_pkts(self, pkt1, pkt2):
- """ Verify the Ether, IP, UDP, payload are equal in both
+ """Verify the Ether, IP, UDP, payload are equal in both
packets
"""
self.assertEqual(pkt1[Ether].src, pkt2[Ether].src)
self.assertEqual(pkt1[Ether].dst, pkt2[Ether].dst)
- self.assertEqual(pkt1[IP].src, pkt2[IP].src)
- self.assertEqual(pkt1[IP].dst, pkt2[IP].dst)
+ if MPLS in pkt1 or MPLS in pkt2:
+ self.assertEqual(pkt1[MPLS].label, pkt2[MPLS].label)
+ self.assertEqual(pkt1[MPLS].cos, pkt2[MPLS].cos)
+ self.assertEqual(pkt1[MPLS].ttl, pkt2[MPLS].ttl)
+ if IP in pkt1 or IP in pkt2:
+ self.assertEqual(pkt1[IP].src, pkt2[IP].src)
+ self.assertEqual(pkt1[IP].dst, pkt2[IP].dst)
+ elif IPv6 in pkt1 or IPv6 in pkt2:
+ self.assertEqual(pkt1[IPv6].src, pkt2[IPv6].src)
+ self.assertEqual(pkt1[IPv6].dst, pkt2[IPv6].dst)
self.assertEqual(pkt1[UDP].sport, pkt2[UDP].sport)
self.assertEqual(pkt1[UDP].dport, pkt2[UDP].dport)
self.assertEqual(pkt1[Raw], pkt2[Raw])
def test_decap(self):
- """ Decapsulation test
+ """Decapsulation test
Send encapsulated frames from pg0
Verify receipt of decapsulated frames on pg1
"""
- encapsulated_pkt = self.encapsulate(self.frame_request,
- self.single_tunnel_bd)
+ encapsulated_pkt = self.encapsulate(self.frame_request, self.single_tunnel_vni)
- self.pg0.add_stream([encapsulated_pkt, ])
+ self.pg0.add_stream(
+ [
+ encapsulated_pkt,
+ ]
+ )
self.pg1.enable_capture()
self.assert_eq_pkts(pkt, self.frame_request)
def test_encap(self):
- """ Encapsulation test
+ """Encapsulation test
Send frames from pg1
Verify receipt of encapsulated frames on pg0
"""
# Pick first received frame and check if it's correctly encapsulated.
out = self.pg0.get_capture(1)
pkt = out[0]
- self.check_encapsulation(pkt, self.single_tunnel_bd)
+ self.check_encapsulation(pkt, self.single_tunnel_vni)
payload = self.decapsulate(pkt)
self.assert_eq_pkts(payload, self.frame_reply)
def test_ucast_flood(self):
- """ Unicast flood test
+ """Unicast flood test
Send frames from pg3
Verify receipt of encapsulated frames on pg0
"""
self.assert_eq_pkts(payload, self.frame_reply)
def test_mcast_flood(self):
- """ Multicast flood test
+ """Multicast flood test
Send frames from pg2
Verify receipt of encapsulated frames on pg0
"""
# Pick first received frame and check if it's correctly encapsulated.
out = self.pg0.get_capture(1)
pkt = out[0]
- self.check_encapsulation(pkt, self.mcast_flood_bd,
- local_only=False, mcast_pkt=True)
+ self.check_encapsulation(
+ pkt, self.mcast_flood_bd, local_only=False, mcast_pkt=True
+ )
payload = self.decapsulate(pkt)
self.assert_eq_pkts(payload, self.frame_reply)
def test_mcast_rcv(self):
- """ Multicast receive test
+ """Multicast receive test
Send 20 encapsulated frames from pg0 only 10 match unicast tunnels
Verify receipt of 10 decap frames on pg2
"""
ip_range_end = 30
mcast_stream = [
self.encap_mcast(self.frame_request, ip, mac, self.mcast_flood_bd)
- for ip in self.ip_range(ip_range_start, ip_range_end)]
+ for ip in self.ip_range(ip_range_start, ip_range_end)
+ ]
self.pg0.add_stream(mcast_stream)
self.pg2.enable_capture()
self.pg_start()
Code Review / vpp.git / blobdiff